In his paper ‘Knowledge and Reasons’ B. A. O. Williams remarks: “That there should be radically impersonal knowledge seems, on the face of it, impossible: if p is known, then somebody must surely know it”. Williams points out, however, that this “apparent platitude” has strongly counter-intuitive consequences. let ‘Kp’ stand for ‘it is known that p', and’ Kap’ for’ a knows that p'.